*{padding:0; margin:0;}
a:link, a:visited {
color: #575757;
text-decoration: none;
}

a:link, a:visited {
color: #575757;
text-decoration: none;
}

/*定义图标svg*/
.nav4{
	height:45px;
}

.nav-4 ul{
	position: fixed;
    z-index: 200;
    bottom: 0.5% !important;
    right: 1%;
}

.nav-4 a{
	font-size:15px;
	-webkit-box-sizing:border-box;
	box-sizing:border-box;
	-webkit-tap-highlight-color:rgba(0,0,0,0);
	border-bottom:0;
	display:block;
	text-align:center;
	float:right;
	margin-right:2%;
}

.nav-4 li>a.on + dl{
	display: block;
}

.nav-4 li>a span{
	color: #4f4d4f;
	display: inline-block;
	padding-left: 15px;
	background: url(imgs/1.svg#2) no-repeat 4px 18px;
	-webkit-background-size: 9px auto;
	text-shadow:0px 1px 0px #ffffff;
}


.nav-4 dl{
	display:none;
	position:absolute;
	z-index:220;
	bottom:80%;
	right:23%;
	text-align:center;
}

/*按钮闪动效果*/
.button img{ 
	position:relative; 
	width:50px; 
	height:50px;
    margin:40px auto;
    border:1px solid #fff; 
    border-radius:100%;
    color:#fff; 
    font-size:20px;
    text-align:center;
    cursor:pointer;
    box-shadow:0 1px 2px rgba(0,0,0,.3);
    overflow:hidden;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: breathe;
    -webkit-animation-duration: 700ms;
    -webkit-animation-iteration-count: infinite;
    -webkit-animation-direction: alternate;
}
@-webkit-keyframes breathe {
    0% { opacity: .2; box-shadow:0 1px 2px #FFFFFF;}
    100% { opacity: 1; border:1px solid #ffff; box-shadow:0 1px 30px #FFFFFF;}
}

/*图标阴影闪动效果*/
.hi-icon {
	display: inline-block;
	font-size: 0px;
	cursor: pointer;
	margin: 10px 0px;
	width: 30px;
	height: 30px;
	border-radius: 50%;
	text-align: center;
	position: relative;
	z-index: 1;
	color: #fff;
}

.hi-icon:after {
	pointer-events: none;
	position: absolute;
	width: 100%;
	height: 100%;
	border-radius: 50%;
	content: '';
	-webkit-box-sizing: content-box; 
	-moz-box-sizing: content-box; 
	box-sizing: content-box;
}

.hi-icon:before {
	font-family: 'ecoicon';
	speak: none;
	font-size: 48px;
	line-height: 90px;
	font-style: normal;
	font-weight: normal;
	font-variant: normal;
	text-transform: none;
	display: block;
	-webkit-font-smoothing: antialiased;
}

.hi-icon {
	background: rgba(255,255,255,0.2);
	-webkit-transition: -webkit-transform ease-out 0.1s, background 0.2s;
	-moz-transition: -moz-transform ease-out 0.1s, background 0.2s;
	transition: transform ease-out 0.1s, background 0.2s;
}

.hi-icon:after {
	top: 0;
	left: 0;
	padding: 0;
	z-index: -1;
	box-shadow: 0 0 0 2px rgba(255,255,255,0.1);
	opacity: 0;
	-webkit-transform: scale(0.9);
	-moz-transform: scale(0.9);
	-ms-transform: scale(0.9);
	transform: scale(0.9);
}

.hi-icon:hover {
	background: rgba(255,255,255,0.05);
	-webkit-transform: scale(0.93);
	-moz-transform: scale(0.93);
	-ms-transform: scale(0.93);
	transform: scale(0.93);
	color: #fff;
}

.hi-icon:hover:after {
	-webkit-animation: sonarEffect 1.3s ease-out 75ms;
	-moz-animation: sonarEffect 1.3s ease-out 75ms;
	animation: sonarEffect 1.3s ease-out 75ms;
}

@-webkit-keyframes sonarEffect {
	0% {
		opacity: 0.3;
	}
	40% {
		opacity: 0.5;
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #3851bc, 0 0 0 10px rgba(255,255,255,0.5);
	}
	100% {
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #3851bc, 0 0 0 10px rgba(255,255,255,0.5);
		-webkit-transform: scale(1.5);
		opacity: 0;
	}
}
@-moz-keyframes sonarEffect {
	0% {
		opacity: 0.3;
	}
	40% {
		opacity: 0.5;
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #3851bc, 0 0 0 10px rgba(255,255,255,0.5);
	}
	100% {
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #3851bc, 0 0 0 10px rgba(255,255,255,0.5);
		-moz-transform: scale(1.5);
		opacity: 0;
	}
}
@keyframes sonarEffect {
	0% {
		opacity: 0.3;
	}
	20% {
		opacity: 0.5;
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #3851bc, 0 0 0 10px rgba(255,255,255,0.5);
	}
	100% {
		box-shadow: 0 0 0 2px rgba(255,255,255,0.1), 0 0 10px 10px #3851bc, 0 0 0 10px rgba(255,255,255,0.5);
		transform: scale(1.5);
		opacity: 0;
	}
}

/*图标旋转效果*/
.hi-icon img{
    margin: 0 auto;
    -webkit-border-radius: 110px;
    border-radius: 110px;
    -webkit-transition: -webkit-transform 0.2s ease-out;
    -moz-transition: -moz-transform 0.2s ease-out;
    -o-transition: -o-transform 0.2s ease-out;
    -ms-transition: -ms-transform 0.2s ease-out;
}

.hi-icon img:hover{
     -webkit-transform: rotateZ(360deg);
     -moz-transform: rotateZ(360deg);
     -o-transform: rotateZ(360deg);
     -ms-transform: rotateZ(360deg);
      transform: rotateZ(360deg);
}